Merge pull request #5649 from practicalswift/swiftc-28471-anonymous-namespace-verifier-verifychecked-swift-type-llvm-smallptrset-swift-arc

[swiftc (101 vs. 5181)] Add crasher in swift::ASTVisitor

Author: practicalswift

validation-test/compiler_crashers/28471-anonymous-namespace-verifier-verifychecked-swift-type-llvm-smallptrset-swift-arc.swift

@@ -0,0 +1,12 @@
+// This source file is part of the Swift.org open source project
+// Copyright (c) 2014 - 2016 Apple Inc. and the Swift project authors
+// Licensed under Apache License v2.0 with Runtime Library Exception
+//
+// See http://swift.org/LICENSE.txt for license information
+// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
+
+// RUN: not --crash %target-swift-frontend %s -emit-ir
+guard{protocol A{
+protocol a{}protocol a{typealias d:A{}typealias e
+class A{
+let c=e=b